分形维数是描述自然界和非线性系统中不光滑和不规则几何体的有效工具，是所有分形对象的主要特征之一。
Fractal dimension is usually an effective way that used to describe the non-smooth and non-regular geometry objects in the nature and non-liner systems.
分形理论主要描述自然界和非线性系统中不光滑和不规则的几何形体，它为植物形态的模拟提供了描述语言和理论基础。
Fractal theory mainly describes the nature and nonlinear system objects which are not smooth and irregular, it also provides description language and theoretical basis for plant simulation.
分形几何能够定量化地描述自然界中各类极不规则的复杂现象，在各个科学领域都得到了广泛的应用。
Fractal geometry can provide quantitative methods to describe numerous irregular and complicated phenomena in nature, and has widely been used in many scientific fields.
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